Gestetner c7528 Operating Guide

Appendix

323

Dynamic DNS is a function which dynamically updates (registers and deletes)
records (A record and PTR record) managed by the DNS server. When a DNS
server is part of the network environment to which this printer, a DNS client, is
connected, records can be dynamically updated using this function.

Updating procedure varies depending on whether the printer IP address is static
or acquired by DHCP.

❒ When the dynamic DNS function is not used, records managed by the DNS

server must be updated manually, if the printer's IP address is changed.

❒ To update the record using the printer, the DNS server has to have one of the

following:

• No security settings made.

• If security settings are made, an IP-specified client (this printer) permits up-

dating.

❖ For a static IP setting

If the IP address or host name is changed, the A and PTR records are updat-
ed.
If the A record is registered, CNAME is also registered. CNAMEs that can be
registered are as follows:

• Ethernet and IEEE 802.11b

RNPXXXXXX (XXXXXX represents the last 3 hexadecimal bytes of the
MAC address)

• IEEE 1394

RNPXXXXXXXXXX (XXXXXXXXXX represents the lower 3-7 bytes of the
MAC Address in hexadecimal)

❖ For DHCP settings

As a substitute for the printer, the DHCP server updates the record, and one
of the following occurs:

• When the printer acquires the IP address from the DHCP server, the DHCP

server updates the A and PTR records.

• When the printer acquires the IP address from the DHCP server, the printer

updates the A record, and the DHCP server updates the PTR record.

If the A record is registered, CNAME is also registered. CNAMEs that can be
registered are as follows:

• Ethernet and IEEE 802.11b

RNPXXXXXX (XXXXXX represents the last 3 hexadecimal bytes of the
MAC address)